Consider the following statements pertaining to the open-die forging of a cylindrical specimen between two flat dies:
1. Lubricated specimens show more surface movement than unlubricated ones.
2. Lubricated specimens show less surface movement than unlubricated ones.
3. Lubricated specimens show more barreling than unlubricated ones.
4. Lubricated specimens show less barreling than unlubricated ones.
Which of these statements are correct?
(a) 1 and 3 (b) 1 and 4
(c) 2 and 3 (d) 2 and 4